Help me plz!!. What keeps the satellite move on it's orbit.​

A satellite maintains its orbit by balancing two factors: its velocity (the speed it takes to travel in a straight line) and the gravitational pull that Earth has on it. A satellite orbiting closer to the Earth requires more velocity to resist the stronger gravitational pull

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Explanation:

velocity and the gravitational pull that Earth has on it.

(motion of a satellite is the force of gravity)

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).